Thanks for the responses everyone..
It is intended to be a moment frame. And I did envision it being a column with cap plate and beam bolted to the plate. I don't typically do much structural design, so I'll definitely be getting assistance from a more experienced structural engineer.
I've been asked to assist in the design of a 28' span W-Beam which would replace two existing 4" x 4" wooden columns supporting a residential second floor. Given the loading, the beam I came up with is an A992 W12x35. It seems on the large side, but after several back checks, I keep coming up...